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发信人: zzt (少年仲永), 信区: Program
标 题: DELPHI TIPS(7)
发信站: BBS 荔园晨风站 (Fri Apr 16 18:22:25 1999), 转信
ZDTips brings you another Delphi Tip
http://www.zdtips.com -- Your #1 source for software tips and techniques
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ZD Journal's Delphi Developer's Journal
For a free issue go to
http://www.zdjournals.com/forms/ddj/cuvw79.htm
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This week's Delphi Tip
Converting database tables to CSV
I like to convert my database tables to comma delimited files (CSV)
for backup and use with a spreadsheet. Use the following code:
procedure BackupTableToCSV(tableName:TTable);
var
i,j: integer; (*i-field, j-record*)
s: string; (*Record string*)
theStringList: Tstringlist; (*temp storage*)
begin
s:='';
theStringList:=TStringList.Create;
with tableName do
begin
try
Active:=True;
except
showmessage('Could not activate '+ Name);
end;
for j:=0 to (RecordCount-1) do
begin
s:='';
for i:=1 to (FieldCount-1) do
begin
(*add next field w/comma delimiter*)
s:=s+(Fields[i].AsString)+',';
end; (*i for*)
theStringList.add(s);
Next;
end; (*i for*)
theStringList.savetofile(Name+'.csv'); (*memo1.lines.*)
Showmessage(Name+ ' has been backed up.');
close;
end; (*with*)
end; (*BackupTableToCSV*)
From--Jack Darby [jdlink@eden.com], Electronic Data Systems/Austin
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